Force-reflecting surgical instrument and positioning mechanism for performing minimally invasive surgery with enhanced dexterity and sensitivity
CA 2255692 C · Owner: Madhani, Akhil J. · Inventors: Madhani, Akhil J.; Salisbury, Kenneth J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An articulated surgical instrument (12) for enhancing the performance of minimally invasive surgical procedures is coupled to a positioning mechanism (14) for supporting and moving the surgical instrument (12). The positioning mechanism (14) mounts to an operating room table. The instrument (12) has a high degree of dexterity, low friction low inertia, good force reflection, and the positioning mechanism (14) provides a large range of motion to the instrument (12). The system is operated according to a macro-micro actuation scheme which allows for a large range of motion of the surgical end effector and also allows for sensitive force feedback to a master controller (150) by reducing …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 20, 1997 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 20, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.